Analysis

  • max time kernel
    120s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    30-11-2021 18:29

General

  • Target

    Scan_Q00 No1972.doc

  • Size

    18KB

  • MD5

    51d489be9ebb175ec0d320784f160ac8

  • SHA1

    9440984a6c2c2f6a6892c74b9a01deaa61eadbea

  • SHA256

    66db3a065d7d24f23677c12fe68571adfb24e0579c4367574840f285026da8b2

  • SHA512

    98035d914f103e4b8688e7990d12d8590182a4f340a52805e65c8d9954ffb54d57b34f44ea259a7fbf17ef659391dde84ff1de7bacca486077fb0389a7318fab

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    mail.palladiumss.com
  • Port:
    587
  • Username:
    raman@palladiumss.com
  • Password:
    raman@1210

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Scan_Q00 No1972.doc"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:976
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1120
    • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
      "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
      1⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Launches Equation Editor
      • Suspicious use of WriteProcessMemory
      PID:1784
      • C:\Users\Admin\AppData\Roaming\templebcdnj89753.exe
        "C:\Users\Admin\AppData\Roaming\templebcdnj89753.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1096
        • C:\Users\Admin\AppData\Roaming\templebcdnj89753.exe
          "C:\Users\Admin\AppData\Roaming\templebcdnj89753.exe"
          3⤵
          • Executes dropped EXE
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • outlook_office_path
          • outlook_win_path
          PID:1312

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Exploitation for Client Execution

    1
    T1203

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Credentials in Files

    3
    T1081

    Collection

    Data from Local System

    3
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\templebcdnj89753.exe
      MD5

      306cc9433de213e10abb4a4b2d2630e1

      SHA1

      524e2e66937c9feb48dbaf81355328100ff993c2

      SHA256

      3052e226236c55ab2d5980b20eacccbb17de601a24a898140cdb1c199454cd3c

      SHA512

      1930917accfa416c3cbe0ae90ba82b9be1a062015138d6b6f61460692935958ef24f7425f324255ae53c63d411c192b7ecb9a336e05df4cd652cb05664bb958f

    • C:\Users\Admin\AppData\Roaming\templebcdnj89753.exe
      MD5

      306cc9433de213e10abb4a4b2d2630e1

      SHA1

      524e2e66937c9feb48dbaf81355328100ff993c2

      SHA256

      3052e226236c55ab2d5980b20eacccbb17de601a24a898140cdb1c199454cd3c

      SHA512

      1930917accfa416c3cbe0ae90ba82b9be1a062015138d6b6f61460692935958ef24f7425f324255ae53c63d411c192b7ecb9a336e05df4cd652cb05664bb958f

    • C:\Users\Admin\AppData\Roaming\templebcdnj89753.exe
      MD5

      306cc9433de213e10abb4a4b2d2630e1

      SHA1

      524e2e66937c9feb48dbaf81355328100ff993c2

      SHA256

      3052e226236c55ab2d5980b20eacccbb17de601a24a898140cdb1c199454cd3c

      SHA512

      1930917accfa416c3cbe0ae90ba82b9be1a062015138d6b6f61460692935958ef24f7425f324255ae53c63d411c192b7ecb9a336e05df4cd652cb05664bb958f

    • \Users\Admin\AppData\Roaming\templebcdnj89753.exe
      MD5

      306cc9433de213e10abb4a4b2d2630e1

      SHA1

      524e2e66937c9feb48dbaf81355328100ff993c2

      SHA256

      3052e226236c55ab2d5980b20eacccbb17de601a24a898140cdb1c199454cd3c

      SHA512

      1930917accfa416c3cbe0ae90ba82b9be1a062015138d6b6f61460692935958ef24f7425f324255ae53c63d411c192b7ecb9a336e05df4cd652cb05664bb958f

    • memory/976-58-0x0000000075321000-0x0000000075323000-memory.dmp
      Filesize

      8KB

    • memory/976-57-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/976-56-0x0000000070351000-0x0000000070353000-memory.dmp
      Filesize

      8KB

    • memory/976-81-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/976-55-0x00000000728D1000-0x00000000728D4000-memory.dmp
      Filesize

      12KB

    • memory/1096-61-0x0000000000000000-mapping.dmp
    • memory/1096-64-0x0000000000900000-0x0000000000901000-memory.dmp
      Filesize

      4KB

    • memory/1096-66-0x00000000002C0000-0x00000000002C6000-memory.dmp
      Filesize

      24KB

    • memory/1096-67-0x0000000004C60000-0x0000000004C61000-memory.dmp
      Filesize

      4KB

    • memory/1096-70-0x0000000002350000-0x000000000239D000-memory.dmp
      Filesize

      308KB

    • memory/1120-69-0x000007FEFBF81000-0x000007FEFBF83000-memory.dmp
      Filesize

      8KB

    • memory/1120-68-0x0000000000000000-mapping.dmp
    • memory/1312-72-0x0000000000400000-0x0000000000426000-memory.dmp
      Filesize

      152KB

    • memory/1312-74-0x0000000000400000-0x0000000000426000-memory.dmp
      Filesize

      152KB

    • memory/1312-73-0x0000000000400000-0x0000000000426000-memory.dmp
      Filesize

      152KB

    • memory/1312-75-0x0000000000400000-0x0000000000426000-memory.dmp
      Filesize

      152KB

    • memory/1312-76-0x000000000042043E-mapping.dmp
    • memory/1312-71-0x0000000000400000-0x0000000000426000-memory.dmp
      Filesize

      152KB

    • memory/1312-78-0x0000000000400000-0x0000000000426000-memory.dmp
      Filesize

      152KB

    • memory/1312-80-0x0000000000470000-0x0000000000471000-memory.dmp
      Filesize

      4KB